Avoid using useless byte array

See merge request jvet/VVCSoftware_VTM!393

remove unused global variable

See merge request jvet/VVCSoftware_VTM!391

Cleanup trailing whitespaces

See merge request jvet/VVCSoftware_VTM!385

Fix Ticket#222：Fix the  bug in Hash ME mode

See merge request jvet/VVCSoftware_VTM!384

Cleanup dead member variables

See merge request jvet/VVCSoftware_VTM!386

Cleanup obsolete code

See merge request jvet/VVCSoftware_VTM!387

Relying on dead function

refactor parcat to re-used NAL unit type defined in TypeDef.h

See merge request jvet/VVCSoftware_VTM!382

advantages:
- no re-definition of NAL unit type (which are going to change)
disadvantages:
- dependency on CommonLib

Note: Further updates will require that the version of parcat matches the software version (VTM/JEM/HM). Thus a version printout was added.

JVET-M0685: QP parameter predictor derivation

See merge request jvet/VVCSoftware_VTM!366

JVET-M0132: improved APS implementation

See merge request jvet/VVCSoftware_VTM!379

JVET-M0113/M0188 quantization groups based on area

See merge request jvet/VVCSoftware_VTM!353

Fix ticket 222

See merge request jvet/VVCSoftware_VTM!380

Fix for Ticket #213: M0277 FIX_PCM_DISABLEFILTER broken

See merge request jvet/VVCSoftware_VTM!346

Fix #218: DMVR constraint for MCTS is permanently enabled

See merge request jvet/VVCSoftware_VTM!369

- remove duplicate ALF parameters from Slice
- add activation (to avoide overwriting when a new APS arrives)
- rename macro

APS implementation from Hendry

Attempt to resolve conflicts with ENABLE_QPA_SUB_CTU but finally make it mutually exclusive with JVET_M0113_M0188_QG_SIZE (to be fixed later)

  - Add same fixes for ALF with SIMD disabled.
  - Additional fix for case where a chroma PCM block is not aligned with 4x4 based ALF processing.

Cleanup dead declarations

See merge request jvet/VVCSoftware_VTM!378

Fix call to std::min function

See merge request !372

TCoeff is not always an int. Using the TCoeff type as template parameter
is preferred.

Bug fix: Initiliaze cu alf flags only for first slice of the picture

See merge request jvet/VVCSoftware_VTM!375

Bug fix for M0451: initialize constraint flags at encoder

See merge request !370

Fix typo in error message

See merge request !374